CALIFORNIA BACKFLOW & CHLORINATION
Purveyor-ready reports on every job.
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Bacteriological Water Sampling
California Backflow & Chlorination performs bacteriological water sampling for HPC and coliform/E. coli through our state-certified laboratory partner. Property managers, contractors, and facility engineers rely on us for accurate collection and purveyor-ready reports.
PHOTO — technician collecting a water sample at a sample tap
When Sampling Is Required
Bacteriological sampling is typically required after chlorination of a new water line, following tank disinfection or repair work, before a water meter release, and as a condition of final inspection sign-off by a purveyor or building department.
Results must come from a state-certified laboratory to be accepted by most agencies, and samples must be collected using proper technique to avoid false positives that can delay a project.
PHOTO — sealed water sample bottles labeled for chain of custody
What Our Bacteriological Sampling Service Covers
Aseptic Collection
Samples are collected using standard aseptic technique at each required point to protect the integrity of the result.
Chain of Custody
Every sample is labeled, sealed on site, and tracked with documented chain of custody from collection through delivery.
Fast Lab Turnaround
Our state-certified lab partner processes samples on standard turnaround, with same-day handling when the lab’s schedule allows.
Purveyor-Ready Reports
Results are compiled into a report formatted for direct submission to your water purveyor or building department.
Resample Coordination
If a result comes back positive, we return promptly to disinfect and resample, keeping the purveyor informed of the revised schedule.
State-Certified Lab Partner
All analysis runs through a laboratory certified by the state, so results are accepted by purveyors without question.
Why Choose California Backflow & Chlorination
Licensed & Insured
Every job is performed under C-36 Contractor License #1117687 and DPR License #140023, backed by the credentials California requires.
Certified Lab Results
Bacteriological and water-quality samples are processed through our state-certified laboratory partner, giving purveyors results they accept without question.
Purveyor-Ready Reports
Every report is formatted for direct submission to your water purveyor or inspecting agency, with same-day turnaround whenever lab results allow.
One Call Does It All
Plumbing, chlorination, and backflow work are handled by the same crew in one visit, so you are not coordinating three separate contractors.
How a Backflow Test Runs
We’ll ask a couple of questions about the backflow preventer in question and set up a time that’s convenient for you.
We arrive at the scheduled time, perform the test, and give you a copy of the results on the spot.
Based on what we find, the device gets a passing grade or we arrange repairs — often completed the same visit.
We send the results to the city, and we’ll see you again next year.
Common Questions
Annually, per California law and nearly every water purveyor. Some purveyors and hazard classes require more frequent testing, which we can confirm for your address.
Pricing depends on device size and count. Call (858) 523-8113 for a quote — multi-device and contracted-customer pricing available.
We document the failure mode, and in most cases repair and retest the device in the same visit. If it cannot be repaired economically, we quote a replacement instead.
Yes. Passing results go directly to the purveyor of record, and you receive a copy for your files.
Call (858) 523-8113 to Schedule Your Annual Backflow Test
✓ Same-Day Scheduling ✓ Upfront Pricing ✓ Purveyor-Ready Reports ✓ Licensed & Insured
California Backflow & Chlorination
Licensed C-36 Contractor #1117687
DPR License #140023
ABPA-Certified Backflow Testers
State-Certified Laboratory Partner
Contact
(858) 523-8113
spencer@cal-backflow.com
Serving Los Angeles, Orange, San Diego,
San Bernardino & Riverside Counties